52 lines
No EOL
1.9 KiB
JavaScript
52 lines
No EOL
1.9 KiB
JavaScript
import * as React from 'react';
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import useEnhancedEffect from '@mui/utils/useEnhancedEffect';
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import useId from '@mui/utils/useId';
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import GlobalStyles from "../GlobalStyles/index.js";
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import useThemeWithoutDefault from "../useThemeWithoutDefault/index.js";
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/**
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* This hook returns a `GlobalStyles` component that sets the CSS layer order (for server-side rendering).
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* Then on client-side, it injects the CSS layer order into the document head to ensure that the layer order is always present first before other Emotion styles.
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*/
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import { jsx as _jsx } from "react/jsx-runtime";
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export default function useLayerOrder(theme) {
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const upperTheme = useThemeWithoutDefault();
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const id = useId() || '';
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const {
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modularCssLayers
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} = theme;
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let layerOrder = 'mui.global, mui.components, mui.theme, mui.custom, mui.sx';
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if (!modularCssLayers || upperTheme !== null) {
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// skip this hook if upper theme exists.
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layerOrder = '';
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} else if (typeof modularCssLayers === 'string') {
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layerOrder = modularCssLayers.replace(/mui(?!\.)/g, layerOrder);
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} else {
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layerOrder = `@layer ${layerOrder};`;
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}
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useEnhancedEffect(() => {
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const head = document.querySelector('head');
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if (!head) {
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return;
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}
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const firstChild = head.firstChild;
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if (layerOrder) {
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// Only insert if first child doesn't have data-mui-layer-order attribute
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if (firstChild && firstChild.hasAttribute?.('data-mui-layer-order') && firstChild.getAttribute('data-mui-layer-order') === id) {
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return;
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}
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const styleElement = document.createElement('style');
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styleElement.setAttribute('data-mui-layer-order', id);
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styleElement.textContent = layerOrder;
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head.prepend(styleElement);
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} else {
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head.querySelector(`style[data-mui-layer-order="${id}"]`)?.remove();
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}
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}, [layerOrder, id]);
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if (!layerOrder) {
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return null;
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}
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return /*#__PURE__*/_jsx(GlobalStyles, {
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styles: layerOrder
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});
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} |